#include <stdio.h>
//字符串拷贝
void strcp(char* des, const char* src);
int main()
{
    char src[] = "hel";
    char des[100] = {0};
    strcp(des, src);
    printf("%s", des);
    return 0;
}
void strcp(char* des, const char* src)
{
    while(*src)
    {
        *des = *src;
        des++;
        src++;
    }
//    *des = '\0';
}